1. Clinical Research Unit, Khoo Teck Puat Hospital, Singapore
2. Ophthalmology and Visual Sciences, Khoo Teck Puat Hospital, Singapore
3. Diabetes Centre, Admiralty Medical Centre, Khoo Teck Puat Hospital, Singapore
4. National Healthcare Group Polyclinics, Singapore
5. Saw Swee Hock School of Public Health, National University Hospital, Singapore